1.

Which of the following reactions is a (are) redox reaction (s) ?

Answer»

`Ca(OH)_(2) + 2HCI to CaCI_(2) + 2H_(2)O`
`CUO + H_(2) to CU + H_(2)O`
`NH_(4)OH + CH_(3)COOH to CH_(3) COONH_(4)+H_(2)O`
`4Fe+3O_(2) to 2Fe_(2)O_(3)`

Answer :B::D


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